Wringer



Aug. 14, 1934. WQL. KAUFFMAN, 2D

WRINGER Filed Nov. 6. 1931 I A TTORNEYS.

""f' I WMV I WIMIMQIF \kh Patented Aug. 14, 1934 WRINGER Walter L. Kauiiman, 2d, Erie, Pa, assignor to Lovell Manufacturing Company, corporation or Pennsylvania Erie, Pa., a

Application November 6, 1931, Serial No. 573,428

7 Claims.

The present invention is designed to improve the manner of assembling the top bar of the wringer to afford a more certain action of a release mechanism to position the upper bearing so 5 as to facilitate the assembly of the rolls. These and other features will appear more fully from the specification and claims.

A preferred embodiment of the invention is illustrated in the accompanying drawing as follows:

Fig. 1 shows a front elevation of the wringer partly in section.

Fig. 2 an enlarged section of theend of the top bar.

Fig. 3 an end view of the top bar.

Fig. 4 an enlarged plan view of the end of the top bar.

Fig. 5 a side elevation of the upper end of the side stile with the top barfremov'ed.

Fig. 6 an enlarged view of the stile and end of the top bar at the latch end of the top bar.

Fig. 7 a section on the line 7-7 in Figs. 1 and 8.

Fig. 8 a section on the line 8-8 in Fig. '7.

Fig. 9 a perspective view of the bottom bearing block.

1 marks the base of the wringer frame, 2 the side stiles. These are formed of sheet metal and are of box shape in cross section. 3 marks the wringer rolls, these rolls being provided with 0 the usual wringer rods 1 extending through the rolls, 5 bearing blocks for the lower roll, these bearing blocks being arranged within the stile and assembled in position in the stile through the top of the stile. Upper bearing blocks 6 5 are arranged over the upper roll rod, the side stiles having a slot '7 from the top downwardly into which the rods are assembled.

A spring 8 is seated on the tops of the bearing blocks 6. It is engaged at the center by a 0 release device having a pin 8a with a shoulder 81),

the pin 8 extending through a fitting So with an operating arm 8d at the upper end. The shoulders 8b operate on cams 86. When the pin is turned the shoulders pass off these cams 5 and are released through slots 8). Preferably an adjusting screw 8g extends through the pin 8a. This release mechanism is in accordance with the patent to Misner, Reissue #151365.

A fitting 8c is mounted in a top bar 9. The 0 top bar is of inverted channel form with closed ends 10. One of the ends is provided with an opening 11 through which extends a pin 12, the pin forming a shoulder engaging the wall a of the opening. The end is provided with a flare 11a leading to the opening. When the top bar is put in place it is swung up at an angle and this permits the opening to move downwardly along the stiles below the pin 12. As the bar is swung down to position, the pin follows down the flared portion and readily enters the opening. The opposite side of the bar is provided with a latch plate l l which is pivotally secured on the top bar by means of a screw 15. The latch bar engages the shoulders 16 struck up in the side of the stile. It has an extension which extends upwardly into the channel and the latch portions at each side are connected by a cross bar 17. A finger 18 engages the top of the cross bar and holds the latch in position to automatically engage when the cross bar is pressed down to position. It is desirable in order to give greater clearance and a more positive release to release the top bar, as well as the pressure of the spring when the release device is operated in accordance with Letters Patent to Schuda, #1,709,098, April 16', 1929. This is accomplished in said Schuda patent by the action of the spring 8 as it is released acting on the latch. In order to assure the operation of the spring on the latch, however, it is necessary to give considerable movement to the spring so that both ends will move sufificiently to assure movement at the released end that will trip the latch. In the present case a stop 13 is provided which ongages the end of the spring 8 opposite the releasing latch. When the spring is released, the end of the spring engages the stop 13 and thus the opposite end of the spring is tilted and more 9 definitely engages and actuates the latch by engaging the cross bar 17 and swinging the latch out from under the shoulder 16. I prefer to form the pin 12 as a screw and the stop in the form of a nut on the screw. 9 It is preferable to assemble the bearings through the top of the stiles and when the rolls are withdrawn, particularly the top roll, one of the bearing blocks may remain in place and if put in place before the rolls are in place, the upper bearing block drops down to engagement with the lower bearing block and interferes with the easy assembly of the upper roll and in the hands of the ordinary operator confuses the operator as to the assembly. In the present structure a guard plate 19 has ears 20 securing the guard plate to the stile, these ears extending through the slot 7. The guard plate is also provided with ears 21 which extend into the stile a distance suificient to form a stop limiting the downward movement of the upper bearing.

The lower bearing is provided with grooves 22 which permit the lower bearing to move past the stops so that the upper bearing may be assembled through the top of the stile.

What I claim as new is:

1. In a wringer, the combination of a frame comprising box-shaped stiles; a top bar of inverted channel form with closed ends mounted on the tops of the stiles, the stiles extending into the top bar channel; bearings in the side stiles; a spring exerting pressure on the bearings; a release device mounted on the top bar and acting on the spring; a stop and catch pin extending through a side stile, the inner end of the pin obstructing the upward movement or" one end of the spring when released; a shoulder on the top bar engaging the outer end of the pin for locking one end of the top bar; and means securing the opposing end of the bar on the stile.

2. In a wringer, the combination of a frame comprising box-shaped stiles; a top bar of inverted channel form with closed ends mounted on the tops of the stiles, the stiles extending into the top bar channel; bearings in the side stiles; a spring exerting pressure on the bearings; a release device mounted on the top bar and acting on the spring; a stop and catch pin extending through the side stile, the inner end of the pin obstructing the upward movement of one end of the spring when released; a shoulder on the top bar engaging the outer end of the pin for locking one end of the top bar; and means for securing the opposing end of the bar on the stile, comprising a latch actuated by the spring when released.

3. In a wringer, the combination of a frame comprising stiles; a top bar arranged on the stiles; bearings arranged in the stiles; a spring exerting pressure on the bearings; a release device mounted on the top bar acting on the springs;

a latch at one end of the top bar securing the top bar in place, said latch being in the path of the spring when released releasing the latch end of the top bar; and a shoulder on the stile engaging the opposite end of the spring when released to tilt the spring into position to release the latch.

4. In a wringer, the combination of side stiles; an upper bearing block on a side stile; a stop on the stile limiting the downward movement of the upper block; a lower block assembled from the top of the stile, said lower block having clearance space permitting the movement of the block past the stop.

5. In a wringer, the combination of side stiles of box form; an upper bearing block slidingly mounted in the stile; a guard plate secured to the stile; and a stop on the guard plate limiting the downward movement of the block.

6. In a wringer, the combination of side stiles of box form; an upper bearing block slidingly mounted in the stile; a stop secured on the stile limiting the downward movement of the block; and a lower bearing block assembled from the top of the stiie, said lower bearing block having clearance space permitting it to pass the stop.

'7. In a wringer, the combination of a frame comprising side stiles, said side stiles being slotted permitting the assembly of the upper roll shaft by a downward movement of the shaft in the slot of one of the stiles; a removable upper roll having a shaft extending into the stile slots; bearing blocks movably mounted in the stiles and bearing on the upper surface of the roll shaft; and a stop on one of the stiles limiting the downward movement of the bearing block of said stile, said stop permitting the entrance of the roll shaft to the bearing block from below the block.

WALTER L. KAUFFMAN, II. 

